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Author Topic: Xenon lamp question Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 05-04-2005 11:41 PM                     the xbo2500 has a set of leads with what looks like two bullets on the end they are for vertical operation only the xbo2500hs has the same ends as a 3000hsc  |  IP: Logged Darryl Spicer Film God Posts: 3250 From: Lexington, KY, USA Registered: Dec 2000 posted 05-05-2005 12:30 AM                    Well, we use them in a vertical position. I was more so curious as to what lamphouse those particular connections went to. Ours is a CFS console but do not require those connections. Gordon, I am guessing that the ones you mentioned would most likely work in a CFS?  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 05-05-2005 03:36 AM                     quote: Gordon McLeod ....what looks like two bullets on the end they are for vertical operation only... ORC consoles also had verticals, and as with the "Charlie Consoles" (CFS) - the two almost had the same lamp frame and recifier design. These 2.5Kw vertical "bullet connector cable" bulbs were used in these Cinemeccanica V-18 13k reel to reel setups. The lamphouse was a "side shooter" lamphouse by which the lamphouse was positioned on the side of the unit and fired the light to a flat optical coated mirror which bent the light 90 degrees to the aperture opening. Here are a couple of picts of the Cinemeccanica. The first one is the actual bulb frame and mirror assembly that is taken out of the lamphouse. One will notice the pre-focus mirror positioned in front of the bulb to aid in containing the light from the front of the bulb and refocus it back to the large balcore glass mirror. Here is a picture of one of these beasts in operation below. This machine was using either platter, or the big reels. Once can notice the angled cover plate which behind it was that flat optical mirror, which we took out at times to clean. It just slid out of a slot when this cover was removed. Focusing this form of lamphouse was actually a trick to do, since one had to separately align the bulb-both vertically and horizonally and to focus both mirrors, one at a time. Then one had to align the flat optical mirror to align with the aperture opening. This had to be done at each bulb change. The nice thing about the V-18 lamphouse, with the bulbs being vertical, that the lamphouse can be left on at all times (the dowser plate was quite a thick plate to really take the heat), and with verticals, the life on these bulbs can last a whole lot longer than the horizontals. I've seen 9000hrs on an Osram 2500XBO and still give out great light, and the envelope never was dark in these lamphouses. -Monte  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 05-05-2005 08:30 AM                     That lamp was first used in the zies Ikon Xenosol lamphouse and then in almost all the other vertical lamphouse most also had the auxilary front spherical mirror  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 05-05-2005 01:56 PM                        First xenon lamphouse I ever saw was a Zeiss Ikon Xenosol at the old Amherst University Theatre across from the south campus of SUNY Buffalo, in the late 1960's. Of course, xenon lamps were introduced in Germany during the mid 1950's by Osram.  |  IP: Logged

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